There was plenty of water flowing at the Lliw Reservoirs recently and during my walk in the rain I took a number of shots of the fast flowing rivers, trying out different settings and shutter speeds.
I have never been a great fan of slow shutter speeds and the “smooth water” effect it gives with flowing water. However, whilst using a fast shutter speed may show the explosive nature of fast moving water, slower shutter speeds will certainly help to represent the flow.
![River Torrents](http://stillwalks.files.wordpress.com/2013/02/img_6398.jpg?w=426&resize=426%2C640)
River Torrents
For the shot above the ISO had to be super high (6400) to allow a shutter speed of 1/1250 at f4.
![River Torrents 2](http://stillwalks.files.wordpress.com/2013/02/img_6402.jpg?w=426&resize=426%2C640)
River Torrents 2
Whereas with this shot the ISO was 100 and shutter speed 1/25 at f4.5.
![River Churning](http://stillwalks.files.wordpress.com/2013/02/img_6434.jpg?w=620)
River Churning
Again, the shot above was taken ISO 6400 with a shutter speed of 1/1250 at f9.
![River Churning 2](http://stillwalks.files.wordpress.com/2013/02/img_6431.jpg?w=620)
River Churning 2
And this one was taken at ISO 100 and a shutter speed of 1/25 at f7.1
The camera was a Canon 550D and the lens was the Canon EF70 – 300mm IS USM.
And for those who are interested, the changing sounds of the river as the flow varies alongside the footpath (4:22 mins).